Dumping scow



a Jan. 16, 1923.

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MM Maw wmm mm mwm in the path of lo werend or outlet thereof. material has slid oil 'verse edge 26 of load is discharged ii-om the well through the I As soon 'asth'e- I from the door the same agam r s by gravity into its lower position in which it extends across the outlet of the well, and then the operatoragainj shifts the locking device from thetopoi' the deck into a position in which itstands that edge of the door next to the curved wall 16 ready toh rest the upward movenient'thereof and keep In order to ermit the load to discharge promptly from the well and thedoor to clear itsel'f effectively or" the material deposited upon theupp'er wall 19 thereofl the transof the straight wallil? is arranged farther from'a vertical plane extending through the axis of the door and the transverse edge 2r of thei well at the lower end oi the curved fwall'lti', asshownin-F 1. As soon as that load which may end of the floor ne it tothe straight wall 17 passes beyond the lower edge 26 thereof the material immediately begins to discharge from the well, accelerated as the door eontinues'to ,s\ ving 'f which discharge is gradually vertically in thesam'e direction. In order to still further facilitate the dischargeot the material from the well andavoid' any clogl the outlet 9f the "well below the tjra'nsverse edgeQGisunder-f ging action, that of cut, as shown at "28, whereby any material altei' passing below the edge w ll be m- I mediately fully'jliberated I and permitted to] drop out of the wellwithout any restriction.' Owing to theffac't that the door oiflthe well of thisscow at bottom of the hull unloading the .scow, this 's'cow notimep asses below the it is' possible to" unload in "comparatively shallow water becoming foul further aided-by the-fact that themomjent the scow begins to unload becomes-lighter recedes irom the discharge and gradually be resting on the ground as the discharging operation proceeds This form of unloading device for a scow' is there.-

fore highly advantageous overa scow in which the doors of the wells or pockets swing downwardly from the bottom of the scow and thus and interfere with the manipulation of the scow which renders it practical, to dump material from in comparatively shallow water.

In order to protect the bearingsion the deck which support the pivots of the doors, two coamings are arranged lengthwise upon the deck along opposite sides of the wells so as to enclose the inner parts ofthe bearings of'the doors, thereby preventing the bucket be constructed of parativ'ely simple in" the door in its closed posit1on,when a load oi ma- .terial is deposited n the well.

the well at'the lower end v Isaid door having a on said 'ihull.

during the operation" of become fouled with the load having a well extending diflicult, if not im-:.

the scow 0t the clredging"apparatus," as the same forming parts of metal but swings over thetscow Ir'om injuring these it isjto be understood that these'parts'niay As a whole;

also be 'iroduced at comcomplicated parts'which are liablejtoget out of order under I claim asniy invention":

'1. 1 A dumping seow comprising a hull pro vided with awell extending from the top to thebottom thereof,- and a vertically swing-c ing door pivoted on said hull and adapted to close Landopen the lower endfof' said well axis.

vide d with 'a' well extending from "th top to the bottom rough usageto which scows jof-tlns character are usually subjected? fiat upper sideiwhilegits" I underside is curved concentr cally with'iits ,v .90 2. A dumping scow comprising a hu l pjro'a othermaterials, if desired.- this dumping fscow' is coniiconstruction, COHSlClQll: sing the function it'is designed to perform andlthe same can 'paratively'low cost'inasmuchas ltllZlS no q swing in a vertical plane' into andloutoi' '7ell are pivo ally mounted vtheir; upper ends 5 3. A dumping scow' vided with a vertical plane into "and out bearings, a, A dumping si comprising hu1,1;pm wellie'xtending from the top to the bottom'thereof, bearings arr 'ngedjo'n the upper side ofsaidliull on oippo'site-sides' of. the well; and a: door adaptedfto swing"in a; I of a position across the lower, end 'of saicl wellandfpi-Q- vided at its opposite en s-wiui:upwar ly projecting arms having trunnions 'attheir f upper ends which "arefjournaled' in said "1 10 vided'with a well extendin f o ijthetop to] the bottom'thereof, and'afdoor adapted'to swing-in a vertical plane into and -o'ut 'of a' position across the :lower .end'of said well and having arms at its opposite ends which v are pivot ally mounted at their upper ends on 5 said hull, said'door having a flatupper, side while its undersidefis curved concentrically withits'aXis. c I v 5. A dumping scow comprising a hull bottom thereof and. two

from the top to the opposing, sides of the well being upright and parallel and two other sides thereof converging downwardly; I

and a door pivotally mounted on'the-hull so as to be capable of swinging, into and out of a positionacross the lower endof said well I said door having a flat upper-side while its underside is curved concentrically with its":

. a position across the v aflat top and a curved 6. A dumping scow comprising a hull having a well extending from the top to the bottom thereof and two opposing sides of the well being upright and parallel and two other sides thereof converging downwardly,

and a door pivotallv mounted on the hull so as to be capable of swinging parallel with the .upright sidesof the well into and out of said door having a flat upper side while its underside is curved concentricalh with its axis.

7. A dumping scow comprising a hull haw ing a well extending from the top to the bot tom thereof and two opposing sides of the same being upright and parallel and the other two sides thereof converging downwardly, one ofthe converging pair of sides being straight andthe other curve'd,- and a door pivotally mounted on. the hull to swing parallel with said upright sides and having bottoni which is, concentric with tl. e axis of the door and the curved side of the well. f 8. A dumping scow comprising a hull having a well extendin from the top to the bot tom thereof and two opposing sides of the same being upright and parallel and the other two sides thereof [cocverging downwardly, one of the converging pair of sides being straight and the othercurved, a door pivotally mounted on the hull to swing parallel with said upright sides and having a flat top and a curved bottom which is concentric with the axis of the door and the curved side of the well and a movable stop mounted on the hull and adapted to be engaged by that part of said door adjacent to the curved side of said well. r

9. A dumping scow Comprising a hull having a well extendingfroni the top to the bot tom thereof and two opposing sides of the same being upright and parallel. and the other two sides thereof converging down-.

wardly, one of thecOnVergmg pair of sides being straight and the, other curved, a door pivotally mounted on the hull to swingparlower end of said well allel with said upright sides and having a 1 mounted on the hull and adaptedto be en gaged by that part of said door adjacentto the curved side of said well, and comprising 1 an inner toggle link pivoted :onthe hull toswing vertically and an outer toggle l nkbottom which is conpivoted on said inner link to swing verti-f cally and adapted to be engaged by theadg'a-Q cent part of the door, the pivotally connected ends ofsaid inner and outer links being adapted to engage a stationary part of said hull.

other by a partition which slopes toward op- 1 10. A dumping scow-coniprising a hull- I from thetop to a posite ends of the hull and forms the inner transverse sides of said wells, and doorsfor controlling the lower. endsof said wells and pivoted on said hull to swing llengthv'vise of the latter and about horizontalaxes. 11.jA dumping scow comprlsinga bottom thereof, and adoor swingingon said hull about a horizontal transverse ZlXlS fiIlCl adapted to control the lower end of saidwell,

of said well being nearer said door than the other transverseedge of the lower end of the. well.

12. A'dninping scow comprising a hull having a well extending from the top to the hull. havinga well extending from the top to the bottom thereof and adoor swin'gingon said hull about a horizontal [transverse axis and adapted to. control the lower end of said well, one of the transverse edges of the lower end of said well beingnearer a vertical plane extending transversely through the axis or,

saidjdoor than the other transverseedge of the lower end of the well and that transverse edge at the lower endfof' thewell farthest from said plane being undercut.

I HARRIS T. DUNBAR;v 

